Photos: Prince William through the years
BRITAIN QUEEN'S BIRTHDAY
Credit: ASSOCIATED PRESS
Prince Charles with his sons Prince William, centre and Prince Harry, left, attend a thanksgiving service in honour of Queen Elizabeth's 80th birthday at St Paul's Cathedral in London, Thursday June 15, 2006. About 40 members of the royal family _ including the queen's husband, Prince Philip, her heir, Prince Charles, and his sons, princes William and Harry _ were among the 2,300 people at the service at London's St. Paul's Cathedral. British Prime Minister Tony Blair is also on the guest list, as are former prime ministers Margaret Thatcher and John Major. (AP Photo,Chris Young,Pool)